Engine starter



Sept. 1, 1925. 1,551,887

L. J. KOSTER ENGI NE STARTER Filed Dec; 12: 34 2 Sheets-Sheet 1 gwuento'n Sept. 1, 1925.

L. J. KOSTER ENGINE STARTER Filed Dec. '12, 1924 2 Sheets-Sheet Z Patented Sept. 1, 1925.

LOUIS Zr. Kos'rsrtbr WESTPHA'LIA, MICHIGAN.

Enema STARTER:

Application filed December 12, 1924. Serial- No. 755,585.

To all whom it may co'zwem:

- itlmownthat I, LOUIS J. Kos'rnn, a citizen of the Ufiited-State s, residing at State of Michigan, have invented certain new and useful Improvements in, an En gine' Starter, ofwhich the following is a specification.

This invention relates -to engine starters and it consists in the novel features hereinafter described and claimed.

-A n object of the invention is to provide a starter especially adapted to be used in conjunction with an internal combustion engine and-which includes a starter shaft-haw ing' an abutment member fixed at the end thereof and with a sleeve mounted for turning movement upon the shaft, ascoil spring is connected at one end with the abutment member and at its other end with the sleeve,

the sleeve is provided at its opposite endwith cam edges and a collar .is slidably lQlillLid...upon"thelve?idis' provided with a gear wheel adapted to engage gear teeth provided upon t e fly wheel of the engine. The said collar. is further provided with a weight which disposes the center of gravity of the collar at one side of the axis of the shaft and whereby said collar will assume a normal position when the gear wheel thereof is disengaged from the fly wheel.

The collar is provided at its opposite ends with cam edges adapted to engage the cam edges alternately of the sleeve, and friction means are provided for temporarily holding the collar in a fixed position with relation to the sleeve. I

In the accompanying drawings Figure 1 is a side elevational view of the engine starter showing the gear wheel thereof disengaged from the fly wheel of the enme. g Figure 2 is a longitudinal sectional view of the same.

Figure 3 is an end view of the engine starter. v

Figure 4 is'a' side elevational view of the engine starter'showing the gear wheel thereof 1n mesh-withthe flywheel of the engine.

Figure 5'isa transverse sectional view of the starter cut onjthe line 55 of Figur Figure 6, is a side elevational view of the starter showing the relative positions of the shaft Twhen the many. held in the parts when the gear wheelof the starter is about to be engaged with the fly wheel.

Figure 7 is a'perspective view of the sleeve used upon the starter.

Asiilustrated -inthe accompanying drawings, the engine starter comprises a shaft 1 which carries at one end'the fixed abutment member 2. A sleeve 'is moiiiited ,.3 1 pbn the shaft 1 and is provided at its ends with-cam edges 4 and 5 respectively. A coil s ring' 6 i is connected at one end withthe abutment member 2' and at its other end with the sleeve 3. The engine fly wheel isindicated at 7, and the said'fly wheel is provided with gear teeth 8. collar 9 is slidably mounted upon the sleeve 3 and is provided at its opposite ends with cam edges 10 and 11 respectively. A gear wheel 12 is mounted upon the intermediate portion of the collar 9 and the forward ends of the teeth of the gear wheel 12 arechamfered or beveled as at 13. A weight 14 is carried bythe collar 9 andis disposed adjacent the gear wheel 12'and ofgravity of the weight 14 is disposed at one side of the axis of the shaft 1 whereby the center" the 'weightlss will be disposed unden'the gear whel'12 is disengaged from the teeth of the wheel 7 as shown in Figure 1 'of the drawing. A spring finger 15 is mounted upon the sleeve 3 and is provided with a hump 16 adapted to engage in a dent provided upon the ,exterior surface of the sleeve 9 and whereby the parts are norure 1 of the drawings.

Assuming that the parts'are n a position as shown in Figure 1 and the shaft 1' is rotated, the abutmentmember 2 rotates with the shaft and the spring 6 causes the sleeve ,3 to rotate with the shaft and .whereby the hump 16 is disengaged from the dent in the collar 9 and the cam edge 5 moves along the movement 7 position as show j g the cams 4 and '10 move relative to each other so that the collar 9 is moved toward"'cam edges engageable with the abutments the abutment member2 and the gear Wheel on the collar. 1 12 disengages the wheel 7 and the hump 16 2. A starter comprising a shaft having an engages in the dent in the collar 9 and the abutment member mounted thereon, a sleeve weight 14 falls to its normal position under journaled upon the shaft, and provided at the shaft 1. its opposite end portions with cam edges, a

Having thus described the invention, what sgrin coiled about and connected to both an I claim is a t e a utment member and the sleeve and 11. A starter comprising a. shaft having an disposed to expand by unwinding when the abutment member mounted thereon, a sleeve shaft is rotated, a collar loosely mounted journaled upon the shaft, a coil spring con upon the sleeve and providedlatq -tsifiposite nected at one end with the abutmentv memends wigh ciam edgesjgaar teeth mounted at ber, and at its other end with the sleevund upmithe collar, a weight mounted upon the disposed to be expande dlbyunvfi'nding when collar and having its center of gravity dis- 15 the shaft is rotated, the sleeve being proposed at one side of the axis of theshaft, a vided at its oppositeends with cam edges, as spring member mounted upon the sleeve and collarvloo selyifinnted upon the sleeve and ,frictionally engaging the collar, abutments 40 provided at its ends with cam edges adapted on the ends of the collar, and abutments on fligage the cam edges of the. sleeve, gear the sleeve adjacent the cam edges thereof teeth carried b the collar, spring means for and engageable with the abutments on the normally holding the collar fixed with relacollar. tion to the sleeve, abutments on the ends of- In tes'timony whereof I afiix m signature. the collar, and abutments on the sleeve at its LOUIS J. K OSTER. 

